[v6.1] general protection fault in dev_map_enqueue
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syzbot
Mar 26, 2024, 3:03:31 PMMar 26
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: d7543167affd Linux 6.1.82
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=10fd783a180000
kernel config: https://syzkaller.appspot.com/x/.config?x=59059e181681c079
dashboard link: https://syzkaller.appspot.com/bug?extid=34815bc1a941d6864aea
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/a2421980b49a/disk-d7543167.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/52a6bb44161f/vmlinux-d7543167.xz
kernel image: https://storage.googleapis.com/syzbot-assets/9b3723bf43a9/bzImage-d7543167.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+34815b...@syzkaller.appspotmail.com
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 12832 Comm: syz-executor.1 Not tainted 6.1.82-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:dev_map_enqueue+0x2d/0x340 kernel/bpf/devmap.c:528
Code: 41 56 41 55 41 54 53 48 83 ec 10 49 89 d5 49 89 f7 48 89 fd 49 bc 00 00 00 00 00 fc ff df e8 6a 67 df ff 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 ef e8 74 dc 36 00 4c 8b 75 00 48 83 c5
RSP: 0018:ffffc9000bacf6d0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8880b9839298 RCX: 0000000000040000
RDX: ffffc9001408a000 RSI: 000000000000026e RDI: 000000000000026f
RBP: 0000000000000000 R08: 0000000000000005 R09: ffffffff888977ac
R10: 0000000000000004 R11: ffff888029871dc0 R12: dffffc0000000000
R13: ffff8880566d0000 R14: ffff8880b98392a8 R15: ffff88807ecd7070
FS: 00007f05eea9b6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d221000 CR3: 0000000060fb1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__xdp_do_redirect_frame net/core/filter.c:4268 [inline]
xdp_do_redirect_frame+0x2aa/0x540 net/core/filter.c:4330
xdp_test_run_batch net/bpf/test_run.c:314 [inline]
bpf_test_run_xdp_live+0xbf4/0x1ea0 net/bpf/test_run.c:362
bpf_prog_test_run_xdp+0x7d1/0x1130 net/bpf/test_run.c:1387
bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3670
__sys_bpf+0x3eb/0x6c0 kernel/bpf/syscall.c:5023
__do_sys_bpf kernel/bpf/syscall.c:5109 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5107 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5107
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f05edc7dda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f05eea9b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f05eddabf80 RCX: 00007f05edc7dda9
RDX: 0000000000000050 RSI: 0000000020000240 RDI: 000000000000000a
RBP: 00007f05edcca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f05eddabf80 R15: 00007ffe253f1c48
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dev_map_enqueue+0x2d/0x340 kernel/bpf/devmap.c:528
Code: 41 56 41 55 41 54 53 48 83 ec 10 49 89 d5 49 89 f7 48 89 fd 49 bc 00 00 00 00 00 fc ff df e8 6a 67 df ff 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 ef e8 74 dc 36 00 4c 8b 75 00 48 83 c5
RSP: 0018:ffffc9000bacf6d0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8880b9839298 RCX: 0000000000040000
RDX: ffffc9001408a000 RSI: 000000000000026e RDI: 000000000000026f
RBP: 0000000000000000 R08: 0000000000000005 R09: ffffffff888977ac
R10: 0000000000000004 R11: ffff888029871dc0 R12: dffffc0000000000
R13: ffff8880566d0000 R14: ffff8880b98392a8 R15: ffff88807ecd7070
FS: 00007f05eea9b6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d221000 CR3: 0000000060fb1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 41 56 push %r14
2: 41 55 push %r13
4: 41 54 push %r12
6: 53 push %rbx
7: 48 83 ec 10 sub $0x10,%rsp
b: 49 89 d5 mov %rdx,%r13
e: 49 89 f7 mov %rsi,%r15
11: 48 89 fd mov %rdi,%rbp
14: 49 bc 00 00 00 00 00 movabs $0xdffffc0000000000,%r12
1b: fc ff df
1e: e8 6a 67 df ff call 0xffdf678d
23: 48 89 e8 mov %rbp,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 ef mov %rbp,%rdi
34: e8 74 dc 36 00 call 0x36dcad
39: 4c 8b 75 00 mov 0x0(%rbp),%r14
3d: 48 rex.W
3e: 83 .byte 0x83
3f: c5 .byte 0xc5
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: d7543167affd Linux 6.1.82
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=10fd783a180000
kernel config: https://syzkaller.appspot.com/x/.config?x=59059e181681c079
dashboard link: https://syzkaller.appspot.com/bug?extid=34815bc1a941d6864aea
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/a2421980b49a/disk-d7543167.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/52a6bb44161f/vmlinux-d7543167.xz
kernel image: https://storage.googleapis.com/syzbot-assets/9b3723bf43a9/bzImage-d7543167.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+34815b...@syzkaller.appspotmail.com
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 12832 Comm: syz-executor.1 Not tainted 6.1.82-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:dev_map_enqueue+0x2d/0x340 kernel/bpf/devmap.c:528
Code: 41 56 41 55 41 54 53 48 83 ec 10 49 89 d5 49 89 f7 48 89 fd 49 bc 00 00 00 00 00 fc ff df e8 6a 67 df ff 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 ef e8 74 dc 36 00 4c 8b 75 00 48 83 c5
RSP: 0018:ffffc9000bacf6d0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8880b9839298 RCX: 0000000000040000
RDX: ffffc9001408a000 RSI: 000000000000026e RDI: 000000000000026f
RBP: 0000000000000000 R08: 0000000000000005 R09: ffffffff888977ac
R10: 0000000000000004 R11: ffff888029871dc0 R12: dffffc0000000000
R13: ffff8880566d0000 R14: ffff8880b98392a8 R15: ffff88807ecd7070
FS: 00007f05eea9b6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d221000 CR3: 0000000060fb1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__xdp_do_redirect_frame net/core/filter.c:4268 [inline]
xdp_do_redirect_frame+0x2aa/0x540 net/core/filter.c:4330
xdp_test_run_batch net/bpf/test_run.c:314 [inline]
bpf_test_run_xdp_live+0xbf4/0x1ea0 net/bpf/test_run.c:362
bpf_prog_test_run_xdp+0x7d1/0x1130 net/bpf/test_run.c:1387
bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3670
__sys_bpf+0x3eb/0x6c0 kernel/bpf/syscall.c:5023
__do_sys_bpf kernel/bpf/syscall.c:5109 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5107 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5107
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f05edc7dda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f05eea9b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f05eddabf80 RCX: 00007f05edc7dda9
RDX: 0000000000000050 RSI: 0000000020000240 RDI: 000000000000000a
RBP: 00007f05edcca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f05eddabf80 R15: 00007ffe253f1c48
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dev_map_enqueue+0x2d/0x340 kernel/bpf/devmap.c:528
Code: 41 56 41 55 41 54 53 48 83 ec 10 49 89 d5 49 89 f7 48 89 fd 49 bc 00 00 00 00 00 fc ff df e8 6a 67 df ff 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 ef e8 74 dc 36 00 4c 8b 75 00 48 83 c5
RSP: 0018:ffffc9000bacf6d0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8880b9839298 RCX: 0000000000040000
RDX: ffffc9001408a000 RSI: 000000000000026e RDI: 000000000000026f
RBP: 0000000000000000 R08: 0000000000000005 R09: ffffffff888977ac
R10: 0000000000000004 R11: ffff888029871dc0 R12: dffffc0000000000
R13: ffff8880566d0000 R14: ffff8880b98392a8 R15: ffff88807ecd7070
FS: 00007f05eea9b6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d221000 CR3: 0000000060fb1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 41 56 push %r14
2: 41 55 push %r13
4: 41 54 push %r12
6: 53 push %rbx
7: 48 83 ec 10 sub $0x10,%rsp
b: 49 89 d5 mov %rdx,%r13
e: 49 89 f7 mov %rsi,%r15
11: 48 89 fd mov %rdi,%rbp
14: 49 bc 00 00 00 00 00 movabs $0xdffffc0000000000,%r12
1b: fc ff df
1e: e8 6a 67 df ff call 0xffdf678d
23: 48 89 e8 mov %rbp,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 ef mov %rbp,%rdi
34: e8 74 dc 36 00 call 0x36dcad
39: 4c 8b 75 00 mov 0x0(%rbp),%r14
3d: 48 rex.W
3e: 83 .byte 0x83
3f: c5 .byte 0xc5
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot
Mar 27, 2024, 12:12:20 AMMar 27
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: e5cd595e23c1 Linux 6.1.83
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=14fcdac9180000
kernel config: https://syzkaller.appspot.com/x/.config?x=99d0cbbc2b2c7cfd
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17fb4006180000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/607b4730a2cc/disk-e5cd595e.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/265e84c69ac5/vmlinux-e5cd595e.xz
kernel image: https://storage.googleapis.com/syzbot-assets/af893c46019b/bzImage-e5cd595e.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+34815b...@syzkaller.appspotmail.com
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 16751 Comm: syz-executor175 Not tainted 6.1.83-syzkaller #0
Code: 41 56 41 55 41 54 53 48 83 ec 10 49 89 d5 49 89 f7 48 89 fd 49 bc 00 00 00 00 00 fc ff df e8 3a 68 df ff 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 ef e8 94 dd 36 00 4c 8b 75 00 48 83 c5
RSP: 0018:ffffc9000621f6d0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8880b9939298 RCX: ffff88807cffd940
RDX: 0000000000000000 RSI: ffff88807e496070 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000005 R09: ffffffff8889d41c
R10: 0000000000000004 R11: ffff88807cffd940 R12: dffffc0000000000
R13: ffff88807d8fa000 R14: ffff8880b99392a8 R15: ffff88807e496070
FS: 00005555559dc480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 1f 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd5953b9f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f6d3d3e44d9
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd5953ba28
R13: 00007ffd5953ba40 R14: 00007ffd5953ba80 R15: 0000000000000a5c
Code: 41 56 41 55 41 54 53 48 83 ec 10 49 89 d5 49 89 f7 48 89 fd 49 bc 00 00 00 00 00 fc ff df e8 3a 68 df ff 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 ef e8 94 dd 36 00 4c 8b 75 00 48 83 c5
RSP: 0018:ffffc9000621f6d0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8880b9939298 RCX: ffff88807cffd940
RDX: 0000000000000000 RSI: ffff88807e496070 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000005 R09: ffffffff8889d41c
R10: 0000000000000004 R11: ffff88807cffd940 R12: dffffc0000000000
R13: ffff88807d8fa000 R14: ffff8880b99392a8 R15: ffff88807e496070
FS: 00005555559dc480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
HEAD commit: e5cd595e23c1 Linux 6.1.83
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=14fcdac9180000
kernel config: https://syzkaller.appspot.com/x/.config?x=99d0cbbc2b2c7cfd
dashboard link: https://syzkaller.appspot.com/bug?extid=34815bc1a941d6864aea
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12f3783a180000
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17fb4006180000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/607b4730a2cc/disk-e5cd595e.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/265e84c69ac5/vmlinux-e5cd595e.xz
kernel image: https://storage.googleapis.com/syzbot-assets/af893c46019b/bzImage-e5cd595e.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+34815b...@syzkaller.appspotmail.com
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:dev_map_enqueue+0x2d/0x340 kernel/bpf/devmap.c:529
Code: 41 56 41 55 41 54 53 48 83 ec 10 49 89 d5 49 89 f7 48 89 fd 49 bc 00 00 00 00 00 fc ff df e8 3a 68 df ff 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 ef e8 94 dd 36 00 4c 8b 75 00 48 83 c5
RSP: 0018:ffffc9000621f6d0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8880b9939298 RCX: ffff88807cffd940
RDX: 0000000000000000 RSI: ffff88807e496070 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000005 R09: ffffffff8889d41c
R10: 0000000000000004 R11: ffff88807cffd940 R12: dffffc0000000000
R13: ffff88807d8fa000 R14: ffff8880b99392a8 R15: ffff88807e496070
FS: 00005555559dc480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555559e5918 CR3: 000000002646f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__xdp_do_redirect_frame net/core/filter.c:4268 [inline]
xdp_do_redirect_frame+0x2aa/0x540 net/core/filter.c:4330
xdp_test_run_batch net/bpf/test_run.c:314 [inline]
bpf_test_run_xdp_live+0xbf4/0x1ea0 net/bpf/test_run.c:362
bpf_prog_test_run_xdp+0x7d1/0x1130 net/bpf/test_run.c:1387
bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3670
__sys_bpf+0x3eb/0x6c0 kernel/bpf/syscall.c:5023
__do_sys_bpf kernel/bpf/syscall.c:5109 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5107 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5107
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6d3d3e44d9
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__xdp_do_redirect_frame net/core/filter.c:4268 [inline]
xdp_do_redirect_frame+0x2aa/0x540 net/core/filter.c:4330
xdp_test_run_batch net/bpf/test_run.c:314 [inline]
bpf_test_run_xdp_live+0xbf4/0x1ea0 net/bpf/test_run.c:362
bpf_prog_test_run_xdp+0x7d1/0x1130 net/bpf/test_run.c:1387
bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3670
__sys_bpf+0x3eb/0x6c0 kernel/bpf/syscall.c:5023
__do_sys_bpf kernel/bpf/syscall.c:5109 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5107 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5107
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 1f 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd5953b9f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f6d3d3e44d9
RDX: 0000000000000050 RSI: 0000000020000240 RDI: 000000000000000a
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd5953ba28
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd5953ba28
R13: 00007ffd5953ba40 R14: 00007ffd5953ba80 R15: 0000000000000a5c
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dev_map_enqueue+0x2d/0x340 kernel/bpf/devmap.c:529
Modules linked in:
---[ end trace 0000000000000000 ]---
Code: 41 56 41 55 41 54 53 48 83 ec 10 49 89 d5 49 89 f7 48 89 fd 49 bc 00 00 00 00 00 fc ff df e8 3a 68 df ff 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 ef e8 94 dd 36 00 4c 8b 75 00 48 83 c5
RSP: 0018:ffffc9000621f6d0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8880b9939298 RCX: ffff88807cffd940
RDX: 0000000000000000 RSI: ffff88807e496070 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000005 R09: ffffffff8889d41c
R10: 0000000000000004 R11: ffff88807cffd940 R12: dffffc0000000000
R13: ffff88807d8fa000 R14: ffff8880b99392a8 R15: ffff88807e496070
FS: 00005555559dc480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555559e5918 CR3: 000000002646f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 41 56 push %r14
2: 41 55 push %r13
4: 41 54 push %r12
6: 53 push %rbx
7: 48 83 ec 10 sub $0x10,%rsp
b: 49 89 d5 mov %rdx,%r13
e: 49 89 f7 mov %rsi,%r15
11: 48 89 fd mov %rdi,%rbp
14: 49 bc 00 00 00 00 00 movabs $0xdffffc0000000000,%r12
1b: fc ff df
1e: e8 3a 68 df ff call 0xffdf685d
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 41 56 push %r14
2: 41 55 push %r13
4: 41 54 push %r12
6: 53 push %rbx
7: 48 83 ec 10 sub $0x10,%rsp
b: 49 89 d5 mov %rdx,%r13
e: 49 89 f7 mov %rsi,%r15
11: 48 89 fd mov %rdi,%rbp
14: 49 bc 00 00 00 00 00 movabs $0xdffffc0000000000,%r12
1b: fc ff df
23: 48 89 e8 mov %rbp,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 ef mov %rbp,%rdi
34: e8 94 dd 36 00 call 0x36ddcd
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 ef mov %rbp,%rdi
39: 4c 8b 75 00 mov 0x0(%rbp),%r14
3d: 48 rex.W
3e: 83 .byte 0x83
3f: c5 .byte 0xc5
---
If you want syzbot to run the reproducer, reply with:
3d: 48 rex.W
3e: 83 .byte 0x83
3f: c5 .byte 0xc5
---
#syz test: git://repo/address.git branch-or-commit-hash
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